1993 Volume 14 Issue Supplement Pages 521-524
Special probe for dentin hypersensitivity treatment was developed. The effects of the optical fiber carbon dioxide laser irradiation on the dentin hypersensitivity model were discussed with changing irradiation output power, time or irradiation mode.
The laser used is optical fiber carbon dioxide laser unit ZH-5 LM 10. (Matsushita Industrial Equipment.)
Dentinhypersensitivity model was made according to Nakamura's method.
The effects were observed as 2mm spot in diameter by a single irradiation.
The conditions were as follows; flowing quantity 21/min of the cooling gas, output power 3W, irradiation time 60 seconds at 0.01 seconds in the irradiation repetition time, total energy density 54 J/mm2.
As results of this study, irradiation was followed by melting of dentin and, then, sealing dental tubules was observed. However, carbonization, pigmentation or clacking were not noted on the irradiated dentin.
